Metal-coating machine



Jan. 26 1926. 1,570,949

F. H. CUNNINGHAM El AL METAL comma MACHINE Filed Fe 20' 1924 4 Sheets-Sheet '1 BY INVE N TOR 5 A A WATTORNEY.

F. H. CUNNINGHAM ET AL METAL comma momma 1 Filed Feb. 20, 1924 4 shee s-sneet z F. H.Cunninaham H.W.M0selez'f INVENTORS A TT ORNE Y.

Jan. 26 1926.

F. H. CUNNINGHAM ET AL METAL COATING MACHINE Filed Feb. 20. 1924 4 sheets-sh et- 3 QM km INVENTORS FHLun'ninaham H.W.Mosele q ATTORNEY.

Jan. 26,1926. 1,570,949

F. H. CUNNINGHAM ET AL METAL COATING MACHINE iled Feb. 2 0 1924 4 Sheets-Sheet 4.

IIIIIIIII) 2? F.'H.Cunningham H.W.M0sele1{ INVENTORS A TTORNE Y.

' have invented certain new and useful Im like,

Patented Jan. 26, 1926.

' rum: 3. CUNNINGHAM, OII' YOUNGSTOWN, AND.

. 1,570,949 PATENT OFFICE.

urn-comma nncrmm.

Application filed February 20, 1924. Serial No. 884,178.

To all whom it may concern:

Be it known that FRANKH. CUNNINGHAM and HARRY W. MosELY, citizens of the United States of Amerlca, residing at Youngstown and'Struthers, respectivelg', in the county of Mahoning and State of hio,

provements in Metal-Coating Machines, of which the following is a specification.

This invention relates in general to a metal coating machine for tubes, containers, or other receptacles, and has more particular reference to the provision of a machine for the purpose of coating tubes and the with a metallic coating, preferably of zinc.

The principal object of this invention is the provision of a machine for coating tubes and the like, whereb the article to be coated is first automatical y carried through "a flux bath and then through a bath containing the liquid coating material to be used. While the article is immersed in each of these baths a portion of the material used is automatically forced through the interior of the tube in order that the interior may be completely subjected to the coating material before leaving the baths.

The drawings illustrate the preferred em-. bodiment of the invention, however, it is' to be understood that in adapting the same to meeting these conditions, various changes in the form, and minor details of construction may be resorted to without departin from the nature of the invention as classe and set forth in the drawings: Figure 1 is a top plan view of the device with sections cut away, yet showing complete working parts.

Figure 2 is a side elevation of Figure 1. Figure 3 is a cross section taken on line 3-3 of Figure 1.

Figure 4 is a cross section taken on line 4-4 of Figure 1.

By referring to Fi ure 1, it will be seen that I have provide a motor 1 attached to a speed reducer 2, by means of a flexible cou ling 3. This motor 1 being used to energize the train of movements about to be described.

It will be seen that the motor 1, and immediate connected parts, rests upon a base plate 4. Secured to, the speed reducer is a crank disc 5. There is a connecting rod 6, connected to the crank disc 5by nefllns of a wrist pin 7, having a projection 8 which is used to mani u'late a series of arms which will be hereinafter described. The other end of the connecting rod 6 is secured to a p.a1r of ratchet arms 9, between which is pivotedpawl 12, the free end of which rides on periphery of ratchet wheel 11, and engages with shoulders on same. Ratchet wheel 11 is secured to shaft 10, between ratchet arms 9 which idle on shaft 10. (See Flgures 1 and 4.) Securely mounted upon .the shaft 10 .are a plurality of pocketed discs 13, which are used to engage articles carrted into a liquid bath in the process of coatlng. There is also securely mounted upon the shaft 10, a plurality of gripper cams'14 for the purpose of functioning with gripper levers 17.

By referring to Figures 1 .and 3, it will be seen that the curved portion 18 of the gripper cams 14 come in contact with shoulders 19, positioned on the upper surface of the gripper levers 17 By referring to the drawings, it will be seen that there are two kettles, a primary kettle 15 for the purpose of containing the metal coating. There is also a secondary kettle 16, secured to the leftend wall of the primary kettle 15, so constructed that the metal may freely flow in order to maintain a same level in both kettles. Itriwill also be seen that there has been provided an upper level of flux 20 on the entering side, into which the articles to be coated are first immersed. (See Figure 3.) This upper level of flux 20 is maintained by means of flux guard 21, the flux being lighter than the metal coating 22. (See Figure 3.)

By'referring to Figure 1, it will be seen that there is a disc 23 secured to the left ratchet arm 9. Near the circumference of this disc 23, there is secured an eccentric pin 24, upon which is secured a connecting ink 25, the upper end of which is attached to-a rocker arm 26. This rocker arm 26 is secured to a shaft 27.

By referring to Figure 2, it will be seen that this shaft 27 is supported by means of a plurality of bearings 28, which in turn are secured to a beam 29. This beam 29 is supported by means of brackets 30, which are mounted on supports 31 secured to the end walls of the primary kettle 15. It will also be seen that there are a plurality of arms 32, secured t the shaft 27.-

mm W. 10mm, or srnurms,

By referring to-Figurespflianddi, itwill be seen that there are a plurality: of finger plates 33 slidably mounted u on the arm 32, in such amanner as toallow olts or pins 34 to function in vertical slots 35, thus-allowing for the handling of varied sizes of articles 36, which are carried throu h the flux 20, on a plurality of guides 37. ivoted at point 38 by means of a pivot pin 39, therearer secured to each finger plate 33, a finger 40 having 'astop 41 functioning with a. shoulder, 42,-in .-o'rder to prevent the lower-end- 430ithe finger 40 from swinging outwardly. 7

By referringto Figure 3, it will be seen that the articles 36. pass between the lower portion of the finger lat es 33, and the upper portion of the gui as 37, from there they are allowed to roll down van incline 44.- into pockets 4:5 and: are carried downwardly into the metal coating 22 by means of therevolving of the shaft 10. in a clockwise direct-ion to which are secured the pocketed discs 13.

By referring to through the interior ofthe articles 36-ata fixed determined point, which will be more fully described in takingup the operation of the'device. L

By referring to' Figures 1, and-2, rt w1 ll;be seen that there is a track 46. upon; wh ch is carried a carriage 47, upon which is-ce r 1-;

trally located two piston chambers $8, each of which-contains'a' piston head 49 carry ing a piston rod 50. At. the lower end'ofthe piston rod 50, there is a piston head '51 operating within achamber 52.- The extreme: lower ends of the chambers- 52 are connected to upturned. ends 53 ofpipes 54, an ordinary. three-way valve 55., being in: serted--in .upper' end of up turned pipe .54, The other ends of, the pipes: 54; shdably project in a horizontal manner through holes in the end wall of: the primarykettle 15. The ends of the pipes 54 which project 7 through the: end wallet-the primary kettle 15 are provided with detachable cone-shaped members 56 which are used to'facilitate the connecting of pipes 54 with ends 57 of the articles36, when the same arein positions,

tomceive the charges of flux and coating metal internally. This position to receive Figuresand 4, will be seen that as thecrank disc 5 revolves, the;

By referringto Figures 3 and 4,'it will be seen that the articles 36- are carried down into-the flux 20. As, each oil thQ' aRbiQIBB-i8 reach the maximum depth'of the flux 20, the same 1s connected toon'e of the pipes 54- carrymg-the cone-shaped members 56: Itzwil'ii be seen in Figure 4 that one of the pipes 54" iselevated in ordertogconnect. with the are ticles' 36 as-they' pass through the flux 20,. 1n order thateach of the same may-receive,- a charge of flux which is forced throughethe lnterior of each of the: articles -36.

. In order to show the manner in wh-ioh the,

articles 36 and subjected to this charge at flux 20, and metal c0ating22, ,the operation; ofthe machine will'be traced vA's above de-\ scribed, the crank disc 5 revolves in a clock-- wlse dlrection, carrying. the projectiom 8 through a-cycle'in which-lit comes-micontacti withfour arms; causing'thesame two-move and t'o,i.operate valves controlling the move ment of the-carriage47and the piston heads- 51 The projection 8 first comes in qnta'ct with an arm 64 carried upon a shaft 6,5 towhioh issecured ai Segmental gear66v which 111110310118 with a segmental gear '67,. whichis, securedito a' shaft-68 upon Which-is car-- me'da segmental! gear -6,9=-which functions with a segmental gear 70' which --,is carried; upon a valve: control: rod: 71, which conti1 ols the four-way ualve'72,,causing the operation; of a PlStOIl head 73, function ng. Within a chamber 74; tocarry' a piston rod-"75 which: isconneetedto the carriage 47., Compressed air or steam may bemsed in 1pipes 7 6 and 77, asdesireda ltwillalsc be-Lseen that them is an arm 78 carmed1-.-upon and secured to the.- shatt'68, and as thesegmental gear'66 travels' in a clockwisemovement, the arm=78-is caused toswing downwardly. As the proection 8 dlsengages-the arm- 64 ,.'it comes in contact with anarm, 7 9 carried upona shaft 80, upon which is mounted. anarm' 81', which 1s, in turn, attached-to a link 82 connect-mg an arm 83, which is mountedupon 'a-shaft 84, upon'which ismounted a segmental gear 85, which functions with a segmental gea lou 86 which is secured to a valve control rod 87. This valve control rod 87 controls? a I flux and metal coating into each of the articles 36 as positioned as above described. It will also be seen that therejs a second arm 91 secured to the shaft 84, the outer end of which is secured to a link 92, connecting with an arm 93, which is secured to a shaft 94. There is also secured upon the shaft 94, a second arm 95. It will be seen that the link 92 has caused the arm 95 to move downward. .The projection 8 now comes in contact with the arm 78, raising the same, and causing a reverse action of the valve control rod 71, resulting in actuating the valve control rod 71, and bringing the arm 64 to its original position. The projection 8 now comes in contact with the downwardly extending arm-95, forcing the same upwardly and in turn causing the arm 93 to be moved upwardly. This, in turn, reverses the action of the valve control rod 87. It will also be seen that this moves the arm 79 into its original position.

By referring to the drawings, it will be seen that the rocker arm 26 actuates the shaft 27, giving the same a rocking movement.

By referring to Figure 3, it will be seen that the arms 32 and connecting parts are caused to rock back and forth. As the finger plates .33 swing outwardly to the right, the articles 36 are allowed room to clear the lower end 43 of the finger 40, by rolling down an incline 96. It will also be seen that as the lurality of finger plates 33 swing back, t e lower end 43 of the finger 40, Wlll force the articles 36 to the left, ejecting one of the same down the incline 44. As the shaft 10 and connecting parts revolve in a clockwise movement, the articles 36 are finally ejected upon an incline 97, allowing the same to roll down steps 98 until each comes in contact with a guard 99, which causes the same to be positioned upon grooved discs 100, which carry the articles 36 without the zone of operation.

By referring to Figure 2 it will be seen that there are a pair of grooved discs 101, positioned one above the other and in line with the grooved discs 100, through which the articles 36 must ass in order to remove the excess of metallic coating and to com.- press the coating which remains on the articles 36. It will also be seen that as the arti cles 36 descend the steps 98, one end of the same will be lowered more rapidly than the other, due to the varied height of the steps 98. The grooved discs 101, may be actuated by any ordinary or desired means.

What we claim is In a device of the class described, means FRANK H. CUNNINGHAM. HARRY W. MOSELEY. 

